Conda upd for python 3.8 (#95)

* Update to p.q logic for handling sys.argv

* reintroduction of old logic

* addition of initial sys argv and embedpy version check

* Update to allow install on python 3.8

* update to py.h to account for python 3.8 api update, change to conda-recipe to account unavailability of appropriate tensorflow on windows 3.8

Author: cmccarthy1

conda-recipe/prep_requirements.q

@@ -1,6 +1,6 @@
 / exclude packages from tests/requirements.txt based on python major minor version
 \l p.q
-pexclude:select py37:enlist"tensorflow*" from (0#`)!()
+pexclude:select py37:enlist"tensorflow*",py38:enlist"tensorflow*"  from (0#`)!()
 pver:`$"py",raze string .p.import[`sys;`:version_info][;`]each`:major`:minor
 `:tests/requirements_filtered.txt 0:u where not any(u:read0`:tests/requirements.txt)like/:pexclude pver
 \\

py.h

@@ -55,7 +55,7 @@ typedef struct _p _p,*P;struct _p{L r;P t;L n;union{P*p;P v[1];};};typedef struc
  X(P,Py_CompileString,(S,S,I))\
  X(P,PyCapsule_New,(V*,S,V*))\
  X(V*,PyCapsule_GetPointer,(P,S))\
- X(P,PyCFunction_New,(D*,P))\
+ X(P,PyCFunction_NewEx,(D*,P,P))\
  X(_p,_Py_TrueStruct,)\
  X(_p,_Py_FalseStruct,)\
  X(_p,_Py_NoneStruct,)\
@@ -86,6 +86,8 @@ typedef struct _p _p,*P;struct _p{L r;P t;L n;union{P*p;P v[1];};};typedef struc
  X(P,PyDict_Values,(P))\
 
 //https://docs.scipy.org/doc/numpy/reference/c-api.html https://github.com/numpy/numpy/blob/master/numpy/core/code_generators/numpy_api.py
+#undef PyCFunction_New
+#define PyCFunction_New(x,y) PyCFunction_NewEx(x,y,NULL)
 #define NF \
  X(_p,PyArray_Type,,2)\
  X(_p,PyGenericArrType_Type,,10)\